baber/WOPTO huggingface dataset:
Patent GB-578737-A (GB)
Title: Improvements in apparatus for emitting or receiving short-wave radio signals
Filed: 1940-06-14
Abstract: 578,737. Wireless signalling. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. June 14, 1940, No. 10337. [Classes 40 (iii) and 40 (v)] Two concentric lines 1, 2 and 3, 4, Fig. 1, one of which is capable of rotary movement about the common axis are electrically connected by bending or shaping the inner and outer members so that the overlapping outer members form a concentric line 1<1>, 3<1> and the overlapping inner members a concentric line 2<1>, 4<1>. If the length of the overlapping portions is a quarter wavelength, or an odd multiple thereof, they present zero impedance to oscillations travelling along the main lines 1, 2, and 3, 4 in either direction. Alternatively, the concentric,lines 1<1>, 3<1> and 2<1>, 4<1> may be of different length but such that the sum of their input impedances is zero. The system may be used for connecting a stationary oscillator to a pair of rotatable radiators in a radio beacon, only one of the radiators being operative at a time. Means for switching on this radiator at the required zone of rotation is shown in Fig. 2. The line 3, 4 from Fig. 1 branches into two lines 5, 6 and 5<1>, 6<1> feeding the two radiators, and at a quarter wavelength from the junction two quarter-wave lines 7, 8 and 7<1>, 8<1> are connected. These are open-ended, but as each in turn passes a fixed plate 9, it is closed by a low impedance. Owing to the impedance-inverting property of a quarter-wave line, the line 7, 8 presents high impedance at the end joined to the feed line 5, 6 and oscillatory current passes along this line to the corresponding aerial. Meanwhile, the open-ended line 7<1>, 8<1> presents a short circuit to the line 5<1>, 6<1> which presents a high impedance to the main line 3, 4. The aerial connected to the line 5<1>, 6<1> is therefore not energized. A capacity may be connected across the inner ends of the lines 7, 8 and 7<1>, 8<1> to compensate for the finite value of the capacity formed therewith by the plate 9.
Patent GB-758917-A (GB)
Title: Improvements in or relating to kiln furniture
Inventor: FIELD ALGERNON HENRY
IPC: C04B35/18
Filed: 1953-04-15
Abstract: In a process for making kiln furniture such as saggers, reinforcement rods of fired refractory ceramics (e.g. a high grade alumina or porcelain), which may be formed by extrusion and bent or serrated, are inserted into a mould and the mould filled with a mixture, which may be dry and pressed in the mould or which may be in the form of a paste or slurry which sets to the shape of the mould, the shaped article being finally fired.  In making a sagger in the form of an open-topped rectangular box a slurry is used comprising 18.75 per cent sillimanite +20 mesh, 18.75 per cent sillimanite -20 mesh, 31.25 per cent of fused alumina -100+200 mesh, and 31.25 per cent of fused alumina -325 mesh, to which is added a mixture of 10 parts methylated spirit, 1 part of water and 20 parts ethyl silicate in the proportions of 930 cubic centimeters to each 5 kilograms of dry mix. This slurry is poured into a mould, in which fired ceramic reinforcement rods are placed in position so that they are embedded in the walls and base of the sagger, the mix is allowed to set, the article removed from the mould, dried and finally fired.
Patent GB-166661-A (GB)
Title: A new or improved pottery mould for the manufacture of egg cups and the like
IPC: B28B7/16
Filed: 1920-04-14
Abstract: 166,661. Leese, S., Mills, H., and Leese, W. S. April 14, 1920. No Patent granted (Sealing fee not paid). Stationary-mould machines; moulds; pressing plungers or dies; moulding hollow-ware.-Comprises improvements in apparatus for moulding egg-cups &c. of the type involving a two-part mould 1 and core or plunger 2. The mould supports, at one side, an annular core guide 17, preferably tapered, which is spaced slightly above the top 2 of the mould. The bottom of the article is formed by a plug 6 fitting between the mould parts and furnished with an ejecting-pin 10 normally retracted by a spring 12. The core is operated by a lever 26 to which it is adjustably connected by a bolt 30 adapted to be inserted through holes 24. A shoulder 25 engages with the guide 17 to limit the descent of the core. The mould is provided with an extended handle portion 15 cut away at 16 to receive the fingers. Air. is admitted to the article, during withdrawal of the core, through a passage 31 having at its lower end a valve 32. Holes 33 are provided in the guide 17 to receive plugs of wood to take up wear of the core.
Patent GB-1073501-A (GB)
Title: Manufacture of polymers
Inventor: JEURISSEN LAMBERT GASTON
IPC: C08G63/85
Filed: 1965-03-11
Abstract: Organic titanium compounds of formula Ti(OOC-R-COOR1)4 where R is an aliphatic, aromatic, cycloaliphatic or heterocyclic bivalent radical joined to each of the carbonyl groups through a carbon atom and R1 is an aliphatic or aromatic monovalent radical joined to the oxygen atom through a carbon atom are made by reacting (a) 4 mols. of a monomethyl ester of a dicarboxylic acid of formula HOOC-R-COOR, with (b) 1 mol. of titanium tetrachloride.  Specified titanium compounds are titanium tetra (monomethyl terephthalate), titanium tetra (monomethyl isophthalate), titanium tetra (monoethyl adipate) and titanium tetra (monomethyl pyridine-2,5-dicarboxylate).ALSO:In the manufacture of highly polymeric polyesters by polycondensing a glycol ester of an aromatic dicarboxylic acid, there is used as a polycondensation catalyst an organic titanium compound of formula Ti(OOC-R-COOR1)4 where R is an aliphatic, aromatic, cycloaliphatic or heterocyclic bivalent radical joined to each of the two carbonyl groups through a carbon atom and R1 is an aliphatic or aromatic monovalent radical joined to the oxygen atom through a carbon atom. Specified catalysts are titanium tetra(monomethyl terephthalate), titanium tetra (monomethyl isophthalate), titanium tetra (monoethyl adipate) and titanium tetra (monomethylpyridine-2,5-dicarboxylate). If the initial glycol ester is made by an ester-interchange reaction, the organic titanium compounds may also be used as catalysts for this reaction.  Specified polyesters are those of terephthalic or pyridine dicarboxylic acids and ethylene glycol or cyclohexanedimethanols. Examples describe the manufacture of polyethylene terephthalate by reacting dimethyl terephthalate, ethylene glycol and possibly, zinc di(monomethyl) terephthalate.
Patent GB-590965-A (GB)
Title: Improvements relating to flyer rails
IPC: D01H7/40
Filed: 1945-04-26
Abstract: 590,965. Flyer rails for spinning &c. frames. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., and ANDERSON, J. K. April 26, 1945, No. 10471. [Class 120 (ii)] A flyer rail made in lengths comprises a number of intermediate sections and two end sections each of which consists of a casting having upper and lower portions A, B, bored at A<1>, B' to receive housings D, E, for the upper and lower ball bearings F of the flyer assemblies any number of which, preferably ten, may be provided in each section. The borings A<1> B', the top and bottom surfaces of the upper and lower portions A, B, and the ends of intermediate and end sections are accurately finished off in order that the flyers may be properly aligned and the rail sections may be fitted into the machine frame M. The upper bore is preferably made slightly smaller than the lower bore so that each flyer assembly may be inserted from below and held in place by screws H. The front parts of the upper and lower portions are raised at O in order that plates P may be positioned therein to cover the driving wharls and tapes.
Patent GB-640602-A (GB)
Title: Electric soldering iron
IPC: B23K3/03
Filed: 1948-04-15
Abstract: 640,602. Soldering-irons. MOINE ET SCHOLLER TRANSFO - STANDARD. April 15, 1948, No. 10539. Convention date, Feb. 2, 1948. [Class 83 (iv)] [Also in Group XI] An electrically heated soldering- iron has a bit of chrome nickel steel or the like which forms the heating element. Two flat conducting arms 3a, 3b are bridged by a narrow bit portion 5 which is bent over to form a U with a slot 6. Solder placed across this slot melts rapidly due not only to the heated bit but also to the heavy current which is shunted through it. Low tension heating current is supplied from a transformer.
Patent GB-1420109-A (GB)
Title: Digital indicating means
IPC: G01G23/37
Filed: 1973-03-05
Abstract: 1420109 Analogue-to-digital conversion CITY UNIVERSITY and J W HEAPHY 28 Feb 1974 [5 March 1973] 10603/73 Heading H3H A digital indication of the sum of two or more analogue input signals is obtained by deriving for each input signal an enabling pulse of width representative of the magnitude of the input signal, applying the enabling pulses to respective gates which also receive clock pulses from a common clock pulse generator through respective, different, delays, the largest delay being less than the period between clock pulses, and feeding the resulting interlaced bursts of pulses through an OR gate to a counter and display. The enabling pulses are derived by comparing the input signals with a staircase wave incremented in synchronism with the clock pulses. The input signals may be from strain gauge bridge circuits sensing individual axle loads of a lorry. If a trailer is added to the lorry, its axle loads may be combined as well, using plug-in connections. The individual axle loads may be displayed.
Patent GB-738270-A (GB)
Title: Improvements in or relating to cathode ray tubes having ion trapping arrangements
IPC: H01J29/84
Filed: 1952-04-28
Abstract: 738,270. Ion trapping in cathode-ray tubes. TELEFUNKEN GES. [formerly TELEFUNKKEN GES FUR DRAHTLOSE TELEGRAPHIE]. April 28, 1952 [April 28, 1951], No. 10637/52. Class 39 (1). In a cathode-ray ion trapping arrangement in which negative ions are made to follow a different path from the electrons by means of a magnetic deflecting field, the ions are absorbed by causing them to strike a getter surface. The getter surface, which may be of barium, magnesium or aluminium or mixtures thereof is coated on metal target 9 by vaporizing getter 10. Diaphragm 5 may also be coated with getter material in the vicinity of aperture 8. Alternatively target 9 may be dispensed with and diaphragm 5 serves as the sole getter surface. To coat diaphragm 5 a getter is arranged facing an aperture of, or inside, anode 7 and is vaporized by eddy current heating. The gun axis may be inclined to the tube axis, as shown, or may be coaxial therewith if the anode and a control electrode have one or both of their adjacent ends extending obliquely to the tube axis.
Patent GB-237036-A (GB)
Title: Improvements in electromagnetic instruments of movable iron type
IPC: G01R5/14
Filed: 1924-04-30
Abstract: 237,036. Martin, A. J., and Furderer, E. R. April 30, 1924. Vibration - dampers, electromagnetic. The spindle 3 of an ammeter carries a disc 9, the periphery of which passes between the poles of a damping-magnet 10. The disc 9 is dished for lightness and strength. An iron plate 6 screens the damping-magnet 10 from the magnetic field of the coil 22.
Patent GB-398935-A (GB)
Title: Improvements relating to liquid flushing apparatus
IPC: E03D1/33
Filed: 1932-04-15
Abstract: 398,935. Valve discharge water-waste-preventers. CRUSE, H. and CRUSE, C., 48, Stockport Road, Hyde, Cheshire. April 15, 1932, No. 10765. [Class 26.] In a water-waste-preventer having operably interconnected inlet and discharge valves and float-operated valvetrip mechanism, the inlet-valve is self-closing under the pressure of the supply and is positively opened for the filling of the tank by the closing of the discharge-valve. In the form shown in Fig. 1, the tank a has a housing with a socket g<1> for an outlet or overtiow, in an apertured closure-plate e. The aperture has a valve-seating f closable by a partially-balanced valve lever b which is lifted by a float j moving upon a rod i. The inlet-valve is constituted by a ball n in a casing providing a seating m, and the dischargevalve by a flap o having an annular resilient seating-pad o<3> and eccentrically pivoted to a bracket o<2> and adapted to be lifted by a lever r, crank r<1>, and an operating-lever, a return spring being provided. With the parts in the positions shown, the air-valve is closed and the valve n is held off its seat by a hammerhead p carried by the valve o. When the dischargevalve-lever is first operated, the seating o<3> expands to keep the discharge-outlet closed while the valve n closes ; the valve o then rises until a notch p<2> in a member p<1> carried by the flap engages a catch-block q sliding in a bracket to which is pivoted a lever q<1> also pivoted to the block q. The float j subsequently falls, opening the air valve and lowering the lever q<1> whereby the discharge-valve is released to return under spring-action. Owing to the resilient nature of the pad o<3> the valve o is firmly seated before the valve n is opened, and the parts are so arranged that a quantity of water remains in the tank at the termination of the flush, thereby ensuring silence of the flush and supply. In another form, Fig. 4, the inlet-valve is operated through a lever t and rocker t<1> and the discharge-valve is lifted through a link having a heel u to provide an initial lift and a toe u<1> connected to a slotted lug on the underside of the valve. The tripmechanism comprises a lever s and a member pl. In a further form, Fig. 6, the inlet-valve is outside the tank and is operated from the crank by a roller v and a cam-lever v<1>, a valve w on the push-rod y co-operating with a seating x to serve as a gland-packing. The air-vent may be dispensed with, or may have a rubber seating engaging a conical valve-member.
Patent GB-1387304-A (GB)
Title: Information carrier of disc form for sound and/or video signals
IPC: G11B7/24
Filed: 1972-03-08
Abstract: 1387304 Optical recording and playback PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 March 1972 [11 March 1971] 10791/72 Heading G5R A disc 1 of transparent non-diffusing material carries optically-readable recordings 3, 4, 5 lying substantially in two or more mutually parallel planes at different depths in the disc. A playback beam 22, Fig. 4, is selectively focused on a chosen recording plane, e.g. by the insertion of one of alternative plates 20, 20a rotatable about a spindle 21. Recording tracks may differ in colour, being selectively played back with the aid of filters.
Patent GB-420902-A (GB)
Title: Improvements in and relating to alternating current frequency changing systems
IPC: H02M5/00
Filed: 1933-04-11
Abstract: 420,902. Changing frequency. INTER. NATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway. New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin) April 11, 1933, No. 10846. Convention date, April 11, 1932. [Class 38 (ii)] To enable power to be transmitted in either direction and at any power factor in a frequency changer employing groups of gridcontrolled discharge devices, the number of groups being determined by the number of phases in the primary circuit, each group of valves is controlled by means of a pair of auxiliary grid-controlled valves having their anodes energized in dependence on the input or output voltage of the system and their grids controlled by a voltage which is dependent on the current of the preceding phase. Fig. 3 shows part of an arrangement in which a single phase system is connected to the phase windings 1, 2, &c., of a star connected polyphase system by means of pairs of reversely connected valves 13<1>, 13<11> and 14<1>, 14<11> &c. Only the control for the grids of the valves 141, 1411 is shown. The grids are connected to the secondary windings 149<11> and 149<111> of a transformer the primary of which is energized from a full wave rectifier comprising a pair of grid controlled valves 141, 142, the anodes of which are supplied with a voltage proportional to the input or output voltage and the grids controlled in dependence on the load current in phase 1. These grid voltages are obtained across a resistance-condenser combination 147, 146 supplied from a current transformer 144 through a rectifier 145<1>, 145<11>. For reliability of operation it may be desirable to insert a supplementary voltage in the grid circuit of the auxiliary valves at 148. In order to produce a suitable waveform of control voltage resistance - condenser combinations 149r<1>, 149c<11> ; 149r<11>, 149c<11> and 149r<111>, 149c<111> are inserted respectively in series with the primary winding 1491 and in parallel with the secondaries 149<11> and 149<111>.
Patent GB-157023-A (GB)
Title: Improvements in or relating to the spring suspension of railway wagons, and other vehicles
IPC: B61F5/32
Filed: 1920-04-19
Abstract: 157,023. Otto, A. C. April 19, 1920. Laminar springs.-In an arrangement for supporting the body of a railway or like vehicle so that as the load increases the leverage on the springs decreases, the free ends 4 of the springs 2 are extended parallel to the under-frame 1, and the underframe is supported thereon by means of intermediate supporting-members 5 provided with rollers 6 whereby they can move longitudinally between the under-frame and springs. The movement of the supporting-members 5 is effected through the medium of bell-crank levers 13 pivoted to brackets 14 on the underframe and having the shorter arms connected by pins and slots to a standard 12 on the anchored portion of the spring 2 and the longer arms connected by rods 15 to the members 5.
Patent GB-799123-A (GB)
Title: Trimming machines for the automatic trimming of stapled booklets
IPC: B26D7/06
Filed: 1957-04-03
Abstract: 799,123. Trimming machines. MULLER, H April 3, 1957 [May 9, 1956], No. 10885/57. Class 31 (1). [Also in Group XXX] A machine for automatically trimming the front and opposite side edges of stapled booklets comprises a vertically reciprocable block 5 provided with a pair of knives 8 co-operable with counter-knives 12, 13 for trimming the opposite side edges of each booklet at a first trimming station and with a knife 10 co-operable with a counter-knife 14 for trimming the front edge of each booklet at a second trimming station, conveyer belts 15, 21 for carrying the booklets, stapled edges leading, towards and away from the trimming stations, and vertically reciprocable abutments 26, 27 for arresting the booklets at the first and second trimming stations respectively. The block 5 is reciprocated from a motor-driven shaft 4 by means of cranks 7. While the booklets are being conveyed by the belts 15 they are aligned by means of dogs 18 on chains 17, moving slower than the belts 15, and by means of converging belts 19 driven from shafts 20. The belts 15, 21 and chains 17 are driven by means of a common driving belt 25 passing round a pulley 24 on the shaft 4. Pressure rollers 23 act to force the booklets against the belts 15, 21'at the intervals between the trimming operations. The pressure rollers 23 and abutments 26, 27 are carried by a beam 28 which is reciprocated vertically by means of a cam 29 on the shaft 4. Adjustable brushes 31, 32 prevent the booklets from moving backwards at the trimming stations.
Patent GB-455218-A (GB)
Title: Improvements in photographic exposure processes
IPC: G03B7/16
Filed: 1935-04-10
Abstract: 455,218. Infra red photography. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.-Ges. ; Frankfort-on-Main, Germany) April 10, 1935, No. 11124. [Class 98 (ii)] Photographic exposures are made with subdued lighting by using infra-red sensitive material and illuminating the object with light which consists substantially wholly of ultraviolet, violet, blue, and infra-red light. As light sources, metal filament incandescent electric lamps screened with filters to absorb green and red light, e.g. of gelatin dyed with crystal violet, Acid Rhodamine, or a mixture of the two, may be used. Suitable dyes for sensitizing the material for infra-red are those described in Specifications 388,204, 394,537, 434,235, and 438,450.
Patent GB-760788-A (GB)
Title: Improvements in or relating to electrical measuring instruments
Inventor: HARTLAND GEORGE WILLIAM
IPC: G01N27/90
Filed: 1952-05-02
Abstract: 760,788. Electric tests. EAST LANCASHIRE CHEMICAL CO., Ltd. April 9, 1953 [May 2, 1952], No. 11129/52. Class 37. Apparatus for e.g. measuring the thickness of a layer of electrically conductive material which may be magnetic or not comprises a, solenoid test head which is placed in contact with the surface to be examined, the change in impedance in the solenoid being indicated by a meter. As shown, the head comprises a coil 19 with a fixed, low-loss iron core 20 which protrudes a short distance beyond the coil 19, the external end being hemispherical, surrounded by a magnetic screen 23 and enclosed in a brass tube 28, the core being centralized in the screen 23 by discs 24, 25 of insulating material. The coil 19 is energized by an H.F. oscillator A via a coaxial cable 16, and is tuned to the oscillator frequency by a parallel condenser 18, the voltage across the parallel circuit being measured by a meter C. The apparatus may also be used for locating flaws, or for comparison of quality of layers of equal thickness.
Patent GB-1135606-A (GB)
Title: Improvements in or relating to concrete mixing plants
IPC: B28C9/04
Filed: 1966-03-14
Abstract: 1,135,606. Skip-hoists. ELBA-WERK ETTLINGER BAUMASCHINEN - UND HEBEZEUGFABRIK G.m.b.H. 14 March, 1966 [13 March, 1965], No. 11150/66. Heading B8H. [Also in Divisions B1 and G1] A mobile concrete mixing plant has a frame 1 carrying a drag-line scraper 6 and a combined skip-hoist and mixer 10 both arranged to be adjustable from a travelling position to operative positions A shown in chain - dotted lines. There are also a weighing skip-hoist 8 guided on tracks 7, a cement balance 11, a water-balance or meter 12, a transfer hopper 9 and a concrete storage hopper 15. The scraper bucket and drag line are supported on a telescopic framework 5 while the mixer is guided in channels (21, 22), see Figs. 2 and 4 (not shown) in a track 14 which is itself supported by rollers (32) moving in a fixed track (20). The mixer track 14 is raised by winches (27, Figs. 2 and 3, not shown), cables (28) and pulleys (19, 30), and in the operative position is locked by pins (35) passing through holes in the fixed track (20) and screwed into internally threaded bores (34) in the bearing pins (31) of the rollers (32).
Patent GB-608759-A (GB)
Title: Improvements in or relating to saucepans or like vessels for boiling liquids
IPC: A47J27/58
Filed: 1945-05-02
Abstract: 608,759. Boiling-utensils. DESHAYES, J. May 2, 1945, No. 11165. Convention date, Nov. 3, 1943. [Class 66] In a saucepan 1 for boiling milk &c. is placed a receptacle 2 with its rim below that of the saucepan 1, to receive milk &c. boiling over, the receptacle 2 being held centrally above the bottom of the saucepan 1, as by resilient legs 5.